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OpenSlot

Online appointment booking software for service businesses worldwide. Manage services, availability, customers and bookings in one hosted platform.

OpenSlot is hosted online appointment booking software for service-based businesses worldwide. Share one booking link so customers can choose a service, staff member and available time without creating an account. Manage services, schedules, working hours, buffers, time away, customers, payments and appointments from one dashboard. The free plan supports one user, one service and up to 20 bookings per month. Paid Solo and Team plans add unlimited bookings, reminders, deposits and payments, custom branding, staff scheduling, permissions and reports. OpenSlot works in the browser and is designed for therapists, coaches, consultants, tutors, salons, personal trainers, pharmacies and healthcare practices.

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OpenSlot

OpenSlot Reviews and Details

This page is designed to help you find out whether OpenSlot is good and if it is the right choice for you.

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Appointments and Scheduling Calendar And Scheduling Appointment Scheduling Appointment Booking Online Bookings Booking Software

Screenshots and images

  • OpenSlot OpenSlot online appointment booking homepage
    OpenSlot online appointment booking homepage //
    2026-08-25
  • OpenSlot OpenSlot features and scheduling controls
    OpenSlot features and scheduling controls //
    2026-08-25
  • OpenSlot OpenSlot mobile customer booking experience
    OpenSlot mobile customer booking experience //
    2026-08-25
  • OpenSlot OpenSlot business dashboard and daily schedule
    OpenSlot business dashboard and daily schedule //
    2026-08-26
  • OpenSlot OpenSlot free, Solo and Team pricing plans
    OpenSlot free, Solo and Team pricing plans //
    2026-08-26

Features & Specs

  1. Simple appointment scheduling

    OpenSlot offers a straightforward scheduling interface that allows businesses and clients to book appointments quickly without unnecessary complexity.

  2. Free scheduling option

    OpenSlot provides a free tier or basic plan, making it accessible for small businesses or individuals who need a no-cost scheduling solution.

  3. Online booking accessibility

    Clients can book appointments online at any time, reducing the need for phone calls and manual scheduling, which improves convenience for both businesses and customers.

  4. Customizable availability

    Businesses can set their own availability, working hours, and appointment types, allowing flexibility to match their specific scheduling needs.

  5. Reduced no-shows with reminders

    The platform typically includes reminder notifications for upcoming appointments, helping to reduce missed bookings and improve client attendance.

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Questions & Answers

As answered by people managing OpenSlot.

  1. What makes OpenSlot unique?

    OpenSlot combines a simple customer booking journey with the practical controls a service business needs. Customers book from one shareable link without creating an account, while the business manages services, staff, working hours, buffers, notice periods, time away, payments and appointments in one hosted platform. It is free to start, requires no WordPress installation or collection of add-ons, and is designed to keep booking administration calm and clear.

  2. Why should a person choose OpenSlot over its competitors?

    Choose OpenSlot if you want hosted appointment booking without a complicated setup. The free plan includes one user, one service and up to 20 bookings per month with no card required. Paid Solo and Team plans add unlimited services and bookings, deposits and payments, email reminders, custom branding, staff scheduling, permissions and reports. Businesses keep control of availability, and customers get a focused booking experience that works well on mobile.

  3. How would you describe the primary audience of OpenSlot?

    OpenSlot is built for independent professionals and small service teams that rely on scheduled appointments. Its primary audience includes therapists and counsellors, coaches, consultants, tutors, salons, personal trainers, pharmacies and healthcare practices. It supports online, in-person and customer-location appointments for businesses serving customers worldwide.

  4. What's the story behind OpenSlot?

    OpenSlot was created to solve the repeated back-and-forth behind the question, "What times do you have?" Appointment-based businesses lose useful time to messages, manual diary checks and follow-ups. OpenSlot replaces that process with one clear booking link, real availability and one place to manage the details. The product launched in August 2026 with a free plan for solo businesses and paid plans for growing professionals and small teams.

  5. Which are the primary technologies used for building OpenSlot?

    OpenSlot is a server-rendered web application built with PHP 8.2 and MySQL, hosted on Apache. Its interface uses Tailwind CSS, with Node.js used only to compile the production stylesheet. Stripe supports subscriptions and appointment payments, while optional Google and Microsoft integrations provide calendar synchronization.

  6. Who are some of the biggest customers of OpenSlot?

    • Customer names are not publicly disclosed at this stage. OpenSlot is newly launched and is designed for independent professionals and small service teams.

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External links

We have collected here some useful links to help you find out if OpenSlot is good.

  • Public traffic stats of OpenSlot

    Check the traffic stats of OpenSlot on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.

  • Domain Rating (DR)

    Check the "Domain Rating" of OpenSlot on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of OpenSlot's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.

  • Domain Authority (DA)

    Check the "Domain Authority" of OpenSlot on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.

  • Public opinion on Reddit

    The latest comments about OpenSlot on Reddit. This can help you find out how popualr the product is and what people think about it.

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Is OpenSlot good? This is an informative page that will help you find out. Moreover, you can review and discuss OpenSlot here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.

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